Table 6.

Sensitivity and Specificity of qXR at different thresholds.

Threshold	Sensitivity (95% CI)	Specificity (95% CI)
0.5	0.91 (0.88, 0.95)	0.35 (0.31, 0.38)
0.6	0.89 (0.85, 0.92)	0.46 (0.42, 0.50)
0.7	0.84 (0.80, 0.88)	0.61 (0.58, 0.65)
0.8	0.73 (0.68, 0.78)	0.76 (0.73, 0.79)
0.818*	0.71 (0.66, 0.76)	0.80 (0.77, 0.83)
0.9	0.64 (0.59, 0.69)	0.84 (0.82, 0.87)

^*Youden’s index.